The jointing of submarine cables involves many tasks, all of which must be correctly performed to ensure that a high reliability transmission path is achieved. One of these is the sheath closure which ensures that the integrity of the joint is maintained in an adverse environment. This is achieved by injection moulding polythene around the joint so that it amalgamates homogeneously with the outer polythene layer on the cable to form a hermetic seal. The moulding process depends on the mould design, the mould temperature, the rate of injection of the molten polythene, and the subsequent rate of cooling of the filled mould. For many years the process has been manually controlled and the quality and consistency of the sheath closures depends on the skill and experience of the operator. British Telecom Research Laboratories are developing a pneumatically operated injection moulding equipment which has microprocessor control of the moulding temperatures and the injection cycle.
Microprocessor controlled cable jointing equipment
Mikroprozessor-geregelte Kabelverbindungseinrichtung
6th European conf. on electrotechnics. EUROCON '84, Computers in communication and control ; 423-424
1984
2 Seiten, 1 Bild
Aufsatz (Konferenz)
Englisch
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